Display screen or portion thereof with graphical user interface



FIG. 1 is a front view of a display screen or portion thereof with graphical user interface, showing our new design; and,

FIG. 2 is a front view thereof, as shown in a user environment.

The broken lines are for environmental purpose only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 